13946945920 has 32 divisors (see below), whose sum is σ = 33341919120. Its totient is φ = 5578778112.

The previous prime is 13946945893. The next prime is 13946945927. The reversal of 13946945920 is 2954964931.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13946945927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10895412 + ... + 10896691.

Almost surely, 2^13946945920 is an apocalyptic number.

13946945920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13946945920 is an abundant number, since it is smaller than the sum of its proper divisors (19394973200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13946945920 is an equidigital number, since it uses as much as digits as its factorization.

13946945920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21792122 (or 21792110 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 52.

The spelling of 13946945920 in words is "thirteen billion, nine hundred forty-six million, nine hundred forty-five thousand, nine hundred twenty".